A Flexible New Technique for Camera Calibration
IEEE Transactions on Pattern Analysis and Machine Intelligence
Machine Vision: Theory, Algorithms, Practicalities
Machine Vision: Theory, Algorithms, Practicalities
High-Performance Wide-Area Optical Tracking: The HiBall Tracking System
Presence: Teleoperators and Virtual Environments
VR-Based Simulators for Training in Minimally Invasive Surgery
IEEE Computer Graphics and Applications
3D soft tissue warping dynamics simulation based on force asynchronous diffusion model
Computer Animation and Virtual Worlds
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As the unique interface for users to communicate with virtual environment, space tracking and positioning apparatus of surgical instruments is an indispensable part of virtual surgery simulation system. A method based on stereoscopic vision is proposed to construct a suit of space tracking and positioning apparatus of surgical instruments. It is able to capture spatial movements of simulated surgical instrument in real time, and provide corresponding six degree of freedom information with the absolute error of less than 1 mm. In order to verify its feasibility, this method is integrated into soft tissue deformation simulation in virtual surgery, and the experimental results show that the developed apparatus is highly accurate, easily operated, and inexpensive.